Skip to main content
Super TutorResources
Chapter 22 of 25
Practice Quiz

Measures Of Dispersion — Practice Quiz

ICSE · Class 11 · Economics

Try a 4-question quiz on Measures Of Dispersion for ICSE Class 11 Economics: tap an answer to check it and see why. 52 questions in the full chapter test.

52 questions40 flashcards2 formulas & key relations5 concepts

Interactive on Super Tutor

Studying Measures Of Dispersion? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for practice quiz and more.

Try Super Tutor — Free

Free trial, no card needed.

Quick Quiz: Measures Of Dispersion

0/4

Tap an answer to check it instantly. No sign-up needed for these 4.

1

A continuous series has class intervals 0-10, 10-20, 20-30, 30-40, and 40-50. Using Method II, what is the range?

2

In the grouped data 1-10, 11-20, 21-30, and 31-40, what is the range after converting to exclusive form?

3

A frequency distribution has Q1 = 28 and Q3 = 52. What is the quartile deviation?

4

For an individual series of 7 items, the ordered values are 4, 6, 8, 10, 12, 14, and 16. What is Q1?

52 Questions·
multiple choicemultiple correct

Sample Questions

1multiple choice
3 marks

A series has X values 5, 7, 9, 11, and 13. What is the standard deviation by actual mean method?

Show answer

2.83

Mean = 9. Deviations are -4, -2, 0, 2, 4. Squares are 16, 4, 0, 4, 16. Sum of squares = 40. SD = √(40/5) = √8 = 2.83.

2multiple choice
3 marks

Using step deviation, values 10, 20, 30, 40, 50, 60, 70 with frequencies 3, 5, 7, 9, 8, 5, 3 and A = 40, C = 10 give what standard deviation?

Show answer

16.5

Step deviation values are -3, -2, -1, 0, 1, 2, 3. Compute Σfd' = 1 and Σfd'² = 109, N = 40. SD = √[109/40 - (1/40)²] × 10 ≈ 16.5.

3multiple choice
3 marks

Two groups have the same mean 53. Group 1 has N = 40 and SD = 19. Group 2 has N = 50 and SD = 8. What is the combined standard deviation?

Show answer

14

Since both means are 53, D1 = 0 and D2 = 0. Combined SD = √[(40×19² + 50×8²) / 90] = √(17640/90) = √196 = 14.

4multiple choice
3 marks

The values 3, 6, 9, 12, and 15 have mean 9. What is the variance?

Show answer

18

Deviations from mean are -6, -3, 0, 3, 6. Squares sum to 90. Variance = average squared deviation = 90/5 = 18.

+48 more questions on Measures Of Dispersion (ICSE Class 11 Economics)

Practise All

Frequently Asked Questions

What are the important topics in Measures Of Dispersion for ICSE Class 11 Economics?
Key topics in Measures Of Dispersion include Meaning and Need of Dispersion, Types of Measures of Dispersion, Range and Coefficient of Range, Quartile Deviation, Inter-Quartile Range, and Percentile Range. Study these first, then practise questions on each for Class 11 exams.
How many practice questions are there for Measures Of Dispersion?
There are 52 questions on Measures Of Dispersion. Try the 4-question sample quiz on this page first; each answer shows an explanation when you tap it.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Measures Of Dispersion

All ICSE Class 11 Economics Practice Quiz

For serious students

Get the full Measures Of Dispersion chapter — start free.

Quizzes, flashcards, an AI doubt solver and a study plan for ICSE Class 11 Economics. Free to start, no card needed.

Try Super Tutor Free
Try this chapter free